I have added an routing protocol(ZBR) in zigbee networks.After the process of make clean, make depend, make.When I run the script language,there is an error as follows:
[8.683424](node 20) ack for association request command received
[8.694944](node 11) scanning channel 13
[8.904320](node 12) scanning channel 13
[8.957664](node 11) sending association request to [channel:11] [PAN_ID:0] [CoordAddr:9] ...
[8.958112](node 11) sending association request command ...
[8.959584](node 11) ack for association request command received
[8.983200](node 15) sending data request command ...
[8.984448](node 15) ack for data request command received
[8.986816](node 15) association response command received
[8.986816](node 15) association successful (non-beacon enabled) [channel:11] [PAN_ID:0] [CoordAddr:14]
[9.167680](node 12) sending association request to [channel:11] [PAN_ID:0] [CoordAddr:10] ...
[9.168768](node 12) sending association request command ...
[9.170240](node 12) ack for association request command received
[9.174944](node 20) sending data request command ...
[9.176224](node 20) ack for data request command received
[9.178688](node 20) association response command received
[9.178688](node 20) association successful (non-beacon enabled) [channel:11] [PAN_ID:0] [CoordAddr:19]
[9.451104](node 11) sending data request command ...
[9.452384](node 11) ack for data request command received
[9.454848](node 11) association response command received
[9.454848](node 11) association successful (non-beacon enabled) [channel:11] [PAN_ID:0] [CoordAddr:9]
[9.454848](node 11) begin to transmit beacons
[9.455616](node 11) beacon transmission successful [channel:11] [PAN_ID:0]
[9.661760](node 12) sending data request command ...
[9.663008](node 12) ack for data request command received
[9.665376](node 12) association response command received
[9.665376](node 12) association successful (non-beacon enabled) [channel:11] [PAN_ID:0] [CoordAddr:10]

Transmitting data ...

Scheduler: Event UID not valid!


Program exited with code 01.
(gdb) bt
No stack.
(gdb)


And when I run the command bt in GDB.It shows NO Stack.
When I set breakpoints in zbr.cc in one line such as 563,it gives the same error.But when I set breakpoints in another line such as 733.It operation well. It always have the same error when I set breakpoints in one line. But when I set breakpoints in another line.It operation well.